This isn’t the first time Buffett has donated a lunch to charity! A private lunch with billionaire Warren Buffett may top several million dollars to benefit Glide, a California homeless charity. Source: Warren Buffett auctions off lunch to raise money for charity

A form filed with the U.S. Securities and Exchange Commission did not name the charities. The largest amount was $5.1 million and the smallest $24,100, at Friday’s price on the Source: Buffett donates $12.7 million in Berkshire Hathaway shares to charity